.code-list  pre {
	opacity:0.85; /* adjust the opacity of main code */
}

/* background color of emphasized lines*/
.code-list .code-selected pre{
	opacity:1;
	background-color:#121212; 
	/*other colors: #121212 black*/
}

/* the left border */
.code-list li{
	border-left:3px solid;
	border-left-color: yellow; /* change color as you like */
}

/* color of selected line number */
ol.code-list li.code-selected::before {
	color:orange;   /*#006699  orange*/
}